1303000202221 has 4 divisors (see below), whose sum is σ = 1303004751100. Its totient is φ = 1302995653344.

The previous prime is 1303000202213. The next prime is 1303000202243. The reversal of 1303000202221 is 1222020003031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 958419462121 + 344580740100 = 978989^2 + 587010^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303000202221 - 2³ = 1303000202213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303000202195 and 1303000202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303000202521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1813656 + ... + 2428033.

It is an arithmetic number, because the mean of its divisors is an integer number (325751187775).

Almost surely, 2^{1303000202221} is an apocalyptic number.

It is an amenable number.

1303000202221 is a deficient number, since it is larger than the sum of its proper divisors (4548879).

1303000202221 is an equidigital number, since it uses as much as digits as its factorization.

1303000202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548878.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1303000202221 its reverse (1222020003031), we get a palindrome (2525020205252).

The spelling of 1303000202221 in words is "one trillion, three hundred three billion, two hundred two thousand, two hundred twenty-one".